Machine for operating on soles.



A E. JOHNSON.

MACHINE FOR OPERATING 0N SOLES.

APPLICATION FILED MAR-7,1913- Patented Mar. 6,1917.

2 SHEETS-SHEET 1- A. E. JOHNSON.

MACHINE FOR OPERATING 0N. SOLES.

- APPLICATION FILED MAR-7,1913; 1,218,561.

Patented Mar. 6, 1917. V

2 SHEETS-SHEET 2- UNITED STATES PATENT OFFICE.

AL IBERT E. JOHNSON, OF BEVERLY, MASSACHUSETTS, ASSIGNOB, TO UNITED SHOE MACHINERY COMPANY, OF PETERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

MACHINE FOR OPERATING ON SOLES.

Specification of Letters Patent.

Patented Mar. 6, 1917.

Application filed March 7, 1913. Serial No. 752,565.-

To all whom it may concern:

Be it. known that I, ALBERT E. JOHNSON, a citizen of the United States, residing at Beverly, in the county of Essex and State of Massachusetts, have invented certain new and useful Improvements in Machines for Operating on Soles; and I do hereby declare solids, or of soles having their marginal rib or abutment, however formed, strengthened by the application thereto of reinforcing material, known as reinforced soles? The reinforcing material is generally, although not necessarily, a fabric such as canvas or duck and for clarity of description all classes of such material are referred to hereinafter by the simple term fabric.

In preparing sole blanks, having a marginal rib or abutment, for the assembling operation care should be taken to produce an abutment standing, in the assembled shoe, in,

such position to the face of the sole that,

first, it will not be caught under the upper in the lasting operation, and second, it will afford a satisfactory guide for the channel guide of the inseam sewing machine. Both of these desired ends may be attained by setting the rib inward so that it stands at an acute angle to the face of the sole and also molding the feather of the sole away from the rib so as to shape the grain side of the sole to the curvature of the bottom of the last on which the shoe is to be assembled and made. By preparing the feather in this way, the inward setting of the rib is preserved after the sole and last have been assembled because, the sole havingbeen shaped to the last, no concaving of the grain-side which acts to return the rib to its upright position,"is necessary in the assembling op eration.

One object of the present invention is to provide new and improved means for treating the marginal portion of a sole in preparing it for the assembling operation.

In accordance with this object one feature of the invention contemplates the provision of devices for setting the rib inward at an inclination to the face of the sole constructed and arranged to iron the outer face of the rib Where y it is permanently set in its inwardly bent position. Preferably the feather is ironed at the same time and means is provided for properly supporting the sole so that the feather is molded away fromthe rib as the rib is set inward. In the preferred form of the invention the devices and tools for operating on the marginal portion of the sole are so constructed and arranged that in operating upon a partially reinforced insole the setting of the fabric, in the reinforcingoperatlon, is completed. The preferred devices employed comprise inside and outside rib-engaging rolls shaped and coiperating to mold the rib and feather to the desired form and to set the fabric on the reinforced sole, the operating surface of the outside roll being of relatively greater diameter than that of the inside roll. With this arrangement, by utilizing the inner roll as the feed roll, and driving the shafts, on which the" two rolls are mounted, at the same speed, the greater peripheral speed of the outer roll causes it to become an ironing tool.

In making the most common type of reinforced soles canvas is prepared in a web about 30 inches wide and this is cut in strips with either parallel or wavy sides, these strips being later cut across at intervals for individual soles, or it is dinked to proper shape and size for individual insoles. In using canvas cut by any of these methods it is desirable that means he provided in the reinforcing machine for trimming off the excess. In reinforcing with the strips having parallel sides the excess may be removed from the machine by the operative seizing it in her fingers as it-is severed, the width of the strip being" sutiicient to provide enough excess to permit of its being so seized. In reinforcing with the strips having wavy sides or thedinked out pieces, especially the latter which are cut closely to size, there is not sufficient excess of canvas to permit of the operative seizing it and with drawing it from the machine as it is trimmed.

The present machine is particularly de signed for operating on soles reinforced by dinked out pieces of reinforcing material and another object of the invention is to provide, in a reinforcing or trimming machine, means to insure the removal of the severed string from the machine whether it be relatively broad or narrow.

In accordance with this Object a further feature of the invention contemplates the provision of a device or tool for engaging the severed string of fabric to clearit from the sole. Preferably a rotary canvas clearing tool is employed and means is provided to prevent the string of fabric from becoming entangled therewith, comprising a scraper which acts with the clearer to automatically eject the trimmed string from the machine. I

The machine hereinafter described is adapted equally well for use on any ribbed sole wherein it is desirable to set the rib inward, or to mold and set both the rib and feather in the manner described, and it is immaterial also to the effective operation of the string removing tool whether the sole reinforced and'passed through the machine is an insole or a turn sole.

The various features of the present inven tion will be best understood from an inspection of the accompanying drawings showing the best form of the invention at present devised, in which,

Figure 1 is a rear elevation of the machine;

Fig. 2 is a detail, in sectional plan, on the line 2-2, Fig. 1, of the cutter and its carrler;

Fig. 3 .is a detail, in left side elevation, of the operating instrumentalities;

Fig. 4 is a sectional detail, in front elevation, of the operating instrumentalities;

Fig. 5 is a detail, in plan, of the operating instrumentalities;

Fig. 6 is a detail of the feed roll; and

Fig. 7 is a detail showing a portion of the margin of an insole after having been passed through the machine. I

'In the illustrated embodiment of the invention a reinforced insole of the Economy type is shown as being operated upon and for ease of understanding such an insole will be referred to throughout the following description of the construction and operation of the machine.

The devices for operating on the previously formed-in insole to secure the reinforcing fabric to the face of the rib com-v prise inside and outside rib engaging rolls 1 and 2 (Fig. 4). The roll 1 is secured by a threaded bolt 1 to a hollow sleeve 3 which in turn is threaded upon a shoulder on the end of a shaft 4. The shaft 4 is journaled in fixed bearings in the machine head (Fig. 1) and is driven from a suitable the inseam sewingmachine needle, in the outside angle, at the base of the rib.

The inside roll 2 is utilized to feed the insole through the machine and to this end is made in the form of a disk (Fig. 6) provided with a smooth base 30 so as not to tear the fabric already set on the face of the insole, a peripheral edge 31 arranged to engage in the vertexof the angle at the inside of the rib and a curved upper surface 32 provided with a row of longitudinal teeth 36. The disk 2 is carried by a support 37 (Fig. 4) which is secured to one end of a shaft 38 journaled in bearings formed in an arm 39 (Fig. 1) pivoted at 40, on the machine head. The disk 2 is spring pressed in a direction tending to force the disk yieldingly into the angle at the inside of the rib by means of a coiled spring 41 which is interposed between the top of the arm 39 and the bottom of a chamber 42 in a stationary bridge 44 on the machine head. The tension of the spring may be varied by pressure from a rod 43 threaded through the bridge 44. The shaft 38 is driven through a gear 45 which meshes with a gear 46'on the driving shaft 4, and is supported in its bearings so that it may slide therein slightly under the pressure of the work. To adjustably limit its extent of sliding movement the shaft carries a collar 47 arranged to abut against the rear bearing on the arm 39.

The insole is positioned for the operation of the rolls 1 and 2 by a pressure roll 9 (Fig. 4) rotatably mounted upon a vertical stud 10 which is adju tably secured to the upper end of an arm T1 pivotally mounted at its lower end on a rod 12 (Fig. 1) carried by a bracket 13 on the machine head. To hold the roll 9 firmly pressed against the unchanneled face of the sole the arm 11 is pivotally connected to one end of a link 14 the other end of which is connected through a tension device to the machine head. This tension device comprises a disk 15 secured to a concentric pin 16 which is rotatably mounted upon the machine head. Coiled around the pin 16 and having one end attached to the link 14 and the other end to the disk 15 is a spring 17. The tension of this spring may be adjusted by rotating the disk 15 which is then held in adjusted posiformed with the arm 11 is a second arm 19. The arm 19 is provided at its upper end with a yoke 20 which embraces a block 21 rotatably mounted on a pin 22 carried on an arm 23 projecting from a rock shaft 24 journaled in the machine head. A secondarm 25 projecting from the rock shaft 24 is provided at its free end with'a hook 27 which supports the upper end of a treadle rod 28. Manipulation of this treadle rod by the operative in the usual manner through the connections described withdraws the roll 9 from its position of pressure on the unribbed face of the insole. The face 7 on the roll 1 is preferably frustoconical in shape and is arranged with its broader base directed away from the insole (see Fig. 4) so that its operating periphery is substantially parallel to the curved surface 32 of the disk 2. With the roll and disk thus constructed and arranged they will act to compress the rib from base to top and bend the rib inward at an inclination to the face of the insole, at the same time pressing and setting the reinforcing fabric firmly against the face of the rib. The face 6 of the-roll 1 is also arranged, so that, when in working position, its feather engaging surface inclines toward the edge of the insole. The sole positioning and pressure roll 9 is provided with a peripheral bulge" 33 at its middle so that its feather engaging surface is substantially parallel to the feather engaging face 6 of the roll 1. With these parts thus constructed and ar ranged they will act to mold the feather down at an angle to the body of the insole and away from the rib in the manner shown in Figs. 4 and 7. The sole is thus properly prepared. for assemblage with the upper on a a last.

In order to have the fabric set while the ribbed face of the insole is convexedly bent into the form which it will assume when secured to a last the machine head carries a stationary finger 34 the end 35 of which projects beyond the disk 2 and engages the face of the insole to bend it outwardly about the upper surface of the pressure roll 9.

Preferably the operating tools are heated as it has been found that the rib is better turned and acquires a more permanent set if the operations are performed with the tools at an elevated temperature. The heat of the tools also renders thereinforcing fabric correspondingly more plastic and pliable. The application of heat may be by means of a steam chamber 48 formed in the machine frame below the forward bearings of the shafts and connected by means of an intake 49 and an outlet 50 to a suitable steam circulating system. As the roll 1 is larger than the disk 2 and the gears 45 and 46 on the shafts 38 and 4 are of the same diameter it will be apparent that the roll 1 is driven at a greater peripheral speed than the feed disk 2. The heated roll 1 thus irons the outside face of the bent rib as the insole is fed through the machine which action in1-' parts a permanent set thereto.

In operating on reinforced insoles, inthe interval betweeh the passage of the insole through the forming-in machine and the presentation of such insole to the machine of the present invention, the insoles are stacked on each other and the loose marginal portion of the reinforcing fabric is thus.

frequently pressed into contact with the inside face, and top, of the rib and becomes more or less firmly adhered thereto. In order to free the false adhesion and hold the marginal portion of the fabric clear of the rib and normal to the rolls 1 and 2, so that these rolls may properly press and set the reinforcing fabric against the rib, the machine is provided with a fabric clearer 51 (Fig. 4) which is secured, by the securing means for the roll 1, between the back of the roll and the end of the sleeve 3. clearer 51 is provided with peripheral teeth 52 so shaped as to permit the clearer to exert suflicient pull upon the reinforcing The fabric to overcome any false adhesionthat i may have taken place. These teeth do not bite into the fabric however, as owing to the greater peripheral speed at which the clearer travels than the feed disk 2 this construction would cause the loose reinforcing fabric to be pulled ahead of the operating point resulting in the pressing of the fabric into a plait or fold beneath the inside tool and a smooth laying of the fabric would not be obtained. The teeth on the clearer 51 are partially covered by a guard 53 (Fig. 3)

on the carrier 56, by a gear 60 on a stub shaft 61 journaled in the carrier, and driven from a suitable source of power-through a belt pulley 62 (Fig. 1). The cutter 54 is held against the rear, slightly concaved face of the roll 1, so that the knife and the roll form shears between which the projecting mar in of the fabric is trimmed, by a spring 63 Fig. 2) coiled about the shaft 55 and interposed between a collar 64 secured to the shaft and a washer 65 loosely carried by the shaft between the end of the'spring and the carrier 56. In order to prevent the hold a wick saturated with oil and a stick of abrasive material for sharpening the cutter. The oiled wick prevents the clogging of the cutter by the tacky coating on the reinforcing fabric and the stick of abrasive material may be pressed against the rotating cutter to sharpen 1t wlthout necessitating its removal from the machine. In order to automatically eject the trimmed string, the machine of the drawings is provided with an inclined scraper 70 (Fig. 3)

I for the clearing tool 51 which is secured by a pair of screws 71 to a support? 2 secured to the machine frame. The scraper 70 is bifurcated (see Fig. 1) to embrace the opposite sides of the clearer 51. With this construction the trimmed string is carried away from the cutting point by the clearer 51, which acts as a string feeder, to a point where the scraper 70 operates, by means of which the string is removed from the clearer. After having been removed from vthe sole in this manner the string is fed down the inclined scraper 7 0 into a suitable receptacle conveniently placed for its reception. With this construction and arrangement of parts it is unnecessary for the operative to handle the trimmed string and however narrow the string may be it is kept from entanglement with the sole or the moving parts and is effectually removed from the machine.

It will be understood that the specific construction and arrangement of parts and the nature of the material for reinforcing the rib is not material to the broader features of the invention and may be varied and modified without departing from the invention as defined by the following claims.

What is claimed as new, is 1. A machine for operating on ribbed soles, having, in combination, inside and outside rib engaging rolls, shaped and cooperating to bend the rib inward at, an inclination to the face of the sole, said outside roll being smooth and of relatively greater diameter than the inside roll and said inside roll being provided with teeth to feed the sole, and means for driving said rolls at the same rotational speed whereby the greater peripheral speed of the outside roll causes 1t to iron the rib from base to top and permanently set it in its inwardly inclined substantially as described.

position,

. for setting the reinforcing. fabric against the 2. A machine for operating on ribbed soles, having, incombination, a tool at the inside of the rib provided with teeth for feeding the sole, a tool at the outside of the rib having a smooth work engaging face, a sole positioning tool at the unribbed face of the sole opposite the rib, said tools being shaped and cooperating to bend the rib inward at an inclination to the face of the sole and to bend the feather away from the rib, and means for causing-the outside tool to iron the rib and feather as the sole is fed to permanently set them in their bent positions, substantially as described.

3. A machine for operating on reinforced soles, having, incombination, inside and outside rib engaging rolls shaped and cooperating to set the reinforcing fabric and bend the rib inward at an inclination to the face of the sole, means for driving the rib engaging surfaces of the rolls at differential speeds whereby the faster driven roll is caused to'iron the rib and permanently set it inward, and means for maintaining the loose fabric adjacent the operating point normal to the tools, to -prevent creasing the fabric. substantially as described.

4. A machine for operating on reinforced soles, having, in combination, means for feeding the sole and for operating on its marginal portion including a roll arranged to operate within the rib, a roll arranged to operate outside the rib cooperating with the inside roll to set the reinforcing fabric and bend the rib inward at an inclination to the face of the sole, and means for differentially driving the rib engaging surfaces of the rolls to cause this portion of theoutside roll to travel faster than the speed at which the sole is fed and thus rub over therib and permanently set it inward, substantially as described.

5 A machine for operating-upon reinforced soles, having, in combination, means no rib, means for trimming the excess fabric, and means for securing control of-and clearing the severed string of fabric from the machine, substantially as described. I

6. A machine for operating upon rum 1 forced soles, having, in combination, means for setting the rein orcing fabric against the rib, means for trimming the excess fabric, means for clearing the severed string of fab ric from the sole, and means for ejecting the cleared string from the machine, substantially as described.

7. A machine for operating upon reinforced soles, having, in combination, means for setting the reinforcing fabric against the rib, means for trimming the excess. fabric, and a device for positively engaging the severed string and clearing it from the sole, substantially as described.

8. A machine for operating upon reinforced soles, having, in combination, means for setting the reinforcing fabric against the rib, means for trimming the excess fabric, means for clearing the severed string of fabric from the sole, and a'scraper cooperating with the clearer to free the cleared string from the clearing means and eject it from the machine, substantially as described.

9. A machine for operating upon reinforced soles, having, in combination, means for setting the reinforcing fabric against the rib, means for trimming the excess fabric, a toothed rotary tool arranged to engage the string and remove it from the sole, and a tool arranged to embrace the clearer and eject the cleared string from 'he machine, substantially as described.

10. A machine for operating upon reinforced soles, having, in combination, means for setting the reinforcing fabric against the rib, rotary means for trimming the exccss fabric, and means for engaging and removing the severed string of fabric from the sole, substantially as described.

11. A machine for operating upon reinforced soles, having, in combination, means for setting the reinforcing fabric against the rib, means for trimming the excess fabric, and means for removing the string from the machine comprising a string feeder for engaging the severed string and feeding it away from the cutting point, and .means to prevent entanglement of the string with the feeder, substantiall as described.

12. A machine or operating upon reinforced soles, having, in combination, means for setting the reinforcing fabric against the rib, means for trimming the excess fabric, means for engaging the severed string to clear it from entanglement with the sole, and a guide for directing the string from the moving parts of the machine, substantially as described.

13. A machine for operating upon reinforced soles, having, in combination, means at opposite sides of the rib for continuously and progressively pressing the reinforcing fabric into the angle at the inside of the rib, and means for simultaneously trimming the fabric along a line approximating the top of the rib, substantially as described.

14. A machine for operating upon reinforced soles, having, in combination, a pair of rolls one at each side of the rib, means for rotating said rolls to support and feed the sole and continuously and progressively set the reinforcing fabric against the rib, a knife mounted adjacent the top edge of the rib, and means to operate said knife to trim the fabric along a line approximating said edge, substantially as described.

15. A machine for operating upon reinforced soles, having, in combination, inside and outside rotary rib engaging rolls sha ed and cooperating to set the reinforcing abric into the angle at the inside of the rib and to feed the sole, a pressure device at the unribhed face of the sole for holding the rib between said rolls, and a rotary disk cutter for simultaneously trimming the fabric along a line approximating the top edge of the rib, substantially as described.

16. A machine for operating upon reinforced soles, having, in combination, a roll at the inner side of the rib provided with longitudinal teeth in its circumferential surface for feeding the sole by engagement with the fabric on the rib, a roll at the outer side of the rib having a circumferential surface engaging the rib, means for yieldingly pressing said rolls together to grip the rib between them, a disk knife having its cutting edge in substantially the plane of the inner base of the roll at the outer side of the rib whereby to trim the fabric along a line approximating the top edge of the rib, and means for rotating said rolls and knife, substantially as described.

17. A machine for operating upon reinforced soles, having, in combination, means to support and feed the sole comprising a roll arranged to operate Within the rib and an oppositely disposed roll outside the rib with means for yieldingly pressing said rolls toward each other, said inner roll being of substantially conical form and operating with the edge of its larger base to set the fabric into the vertex of the angle at the inner side of the rib, a disk knife constructed and arranged to trim the fabric along a line substantially coincident with the top edge of the rib, and means for rotating said rolls and knife, substantially as described.

18. A machine for operating upon reinforced soles, having, in combination, means operating upon the fabric at the rib including a roll at the outer side of the rib having its peripheral edge adjacent the top of the rib'and a concaved rear face, a disk knife having its cutting edge overlapping the peripheral edge of said rear face, and means for rotating said roll and knife to shear the fabric along a line approximating the top edge of the rib, substantially as described.

19. A machine for operating on soles having a marginal rib, having, in combination, a pair of rolls arranged to engage the two sides of the rib, a cutter in position to trim the top edge of the rib engaged by the rolls, one of said rolls having an edge constituting a complemental shear member; and means 10 holding the rib between said rolls, a cutter arranged close to the inner faee of one of said rolls for cutting off the top edge of the rib engaged by the rolls, and means for operating said cutter, substantially as described.

ALBERT E. JOHNSON.

Witnesses:

GEORGE E. STEBBINS, ELsm Pnnss.

It is hereby certified that in Letters Patent No. 1,218,561, granted March 6, 1917,

upon the application of Albert E. Johnson, of Beverly, Massachusetts, for an improvement in Machines for Operating on Soles," errors appear in the printed specification requiring correction as follows: Page 5, line 21, claim 10, strike out the word rater-y"; same page and claim, line 22, before the word "means insert the word rotary; and that the said Letters Patent should be read with these corrections therein that the same may conform to the record of the case in the Patent Ofiice.

Signed and sealed this 29th day of May, A. D., 1917.

F. W. H. CLAY, Acting Commissioner of Patents.

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